Assignee: Aisan Kogyo Kabushiki Kaisha

Location: Aichi, JP
No. of patents: 67

Number	Title	Issue Date
8113169	Device for controlling heating of a throttle valve of an internal combustion engine In an embodiment, conductance of electricity to a heating element (4) for heating a throttle valve (2) of an automobile engine and a peripheral section thereof is performed only during a period wherein this heating can be performed effectively. Specifi...	02/14/2012
7117856	Fuel delivery systems A fuel delivery system for delivering fuel from a fuel tank to an engine includes a reservoir disposed within the fuel tank and a fuel pump, such as an electrically driven fuel pump, operable to draw fuel from within the reservoir. The fuel pump has a first port and...	10/10/2006
7082963	Gas pressure reduction valve A first retainer and a second retainer are provided between a diaphragm and an upper housing. A first spring urges the diaphragm downward between the first retainer and the diaphragm. A second spring having an outer diameter smaller than that of the first spring urg...	08/01/2006
7047952	Canister A canister comprises a tank port communicated with an upper air chamber in a closed fuel tank, a purge port communicated with an intake passage of an engine, an atmospheric port opened to the atmosphere, and a main adsorbent chamber containing activated carbon, and ...	05/23/2006
6988478	Resin intake manifold A resin intake manifold is provided with two separated bodies manufactured by connecting protrusions of weld portions of the separated bodies to each other in accordance with a vibration welding, and a cover wall in which one of the weld portions is arranged in an i...	01/24/2006
6987340	DC motor with brushes A DC motor includes a stator of magnets surrounding a rotor containing coils of wire surrounding cores. Brushes serve to repeatedly start and interrupt the supply of current to the individual coils via respective commutator segments of the rotor in order to rotate t...	01/17/2006
6978755	Air intake apparatus of engine In an air intake apparatus of an internal combustion engine, disassembling a surge tank made of resin with an intake air control valve into divided pieces, and bonding the divided pieces by vibration adhesion, for preventing the intake air control valve from breakin...	12/27/2005
6971264	Throttle opening degree detecting apparatus A throttle opening degree detecting apparatus includes a resin gear, a permanent magnet, a yoke and a magnetic sensor. The resin gear is connected to a throttle shaft of a throttle valve and provided with a depressed boss portion in an axial position. The permanent ...	12/06/2005
6933818	Torque motors A torque motor may include a rotor having at least two magnets disposed thereon, and a stator having a core and at least one coil. The magnets are arranged and constructed so that the outer surfaces thereof alternately have a N pole and a S pole. The magnets cover t...	08/23/2005
6896195	Electromagnetic fuel injection valve and method for manufacturing same An electromagnetic fuel injection valve wherein it is possible to prevent undesired adhesion between the respective abutting surfaces of an armature and a stationary core as well as to ensure the required wear resistance for the abutting surfaces and wherein the amo...	05/24/2005
6895948	Exhaust gas recirculation system for internal combustion engine An exhaust gas recirculation system for an internal combustion engine in which at least one metal plate is interposed between a cylinder head and an intake manifold, and an EGR gas passage is formed in the plate, wherein the EGR gas passage is formed in its lowest p...	05/24/2005
6874466	Intake valve device An intake valve device includes a throttle body defining a bore for the flow of intake air. A throttle shaft is rotatably mounted to the throttle body. A slit is formed in the throttle shaft in a diametrical direction and extends throughout the diameter of the throt...	04/05/2005
6863492	Friction regenerative pump A friction regenerative pump of this invention comprises: a partition portion formed in a section from a high-pressure outlet to a low-pressure intake along an impeller rotation direction; and a tongue portion provided in the partition portion such that it is elasti...	03/08/2005
6851410	Throttle control device A throttle control device has a throttle body (TB) in which an intake passage (1a) is formed. A throttle valve (2) is rotatably arranged within the intake passage. A motor (4) rotates the throttle valve. The throttle body has a gear accom...	02/08/2005
6846155	Fuel pump A fuel pump improved in pump efficiency is provided. An impeller rotating in a pump casing has an approximately disk-shaped configuration with a group of recesses formed in a region extending along the outer peripheries of the obverse and reverse sides of the impell...	01/25/2005
6840230	Reservoir unit In order to fit a reservoir unit to be installed in a fuel tank in such a manner that the air-tightness of the fuel tank be not lost even if a large acceleration or deceleration works on the fuel tank, the reservoir unit is configured of an upper subunit, a lower su...	01/11/2005
6837675	Fuel pump A fuel pump capable of using the pump efficiency most efficiently without reducing the useful service life is provided. A relatively large clearance allowing for the expected amount of wear is ensured in a region where the flow passage groove pressure is low. In a r...	01/04/2005
6823885	Liquid drains having liquid level adjusting mechanisms A liquid drain (2) includes a drain body (20). The drain body defines a float chamber (30) that is adapted to store a liquid. A liquid level adjusting mechanism serves to adjust the liquid level within the float chamber and includes a float (...	11/30/2004
6824366	Fuel pump with a terminal plate connector and means for securing the plate in place A fuel pump in which a terminal plate can be liquid-tightly mounted to a body upper and prevented from being dislodged from the body upper without the need of other component parts is provided. The terminal plate is formed with a cut and raised portion for preventin...	11/30/2004
6796280	Intake air control valve An intake air control valve of the invention has a valve body and a valve holder, and is attached to a communication hole on a partition wall separating a surge tank chamber within a surge tank of a multiple cylinder internal combustion engine by fitting and inserti...	09/28/2004
6777852	Stator core of torque motor A stator core of the invention is structured such that the stator core is provided with an arm portion for pressure inserting a coil portion, and pole tooth portions arranged in a columnar space for inserting a rotor in an opposing manner. In the stator core, a stat...	08/17/2004
6776823	Gas/liquid separating devices Gas/liquid separating devices include a separator (1) for separating a mixed gas/liquid flow (M). A liquid drain (2) communicates with the separator and defines a liquid storage chamber (30). The liquid drain serves to temporarily store a liquid...	08/17/2004
6749137	Electromagnetic fuel injection valve An electromagnetic fuel injection valve wherein a central pipe part has satisfactory mechanical strength and an intermediate portion of the pipe part is surely made non-magnetic is provided. The electromagnetic fuel injection valve has a core surrounded by a solenoi...	06/15/2004
6742496	Butterfly valve The butterfly valve of the invention is provided with a valve shaft to which a valve body is mounted, and a pair of slide bearings which rotatably support both ends of the valve shaft. Inner peripheral surfaces of the slide bearings being in contact with the valve s...	06/01/2004
6739354	Reservoir unit In order to provide a simply-structured fuel filter which permits soaking at least part of a filter unit all the time in fuel in a reservoir, a reservoir unit is configured of a resin-built cylindrical reservoir having a bottom arranged on the bottom of a fuel tank,...	05/25/2004
6712048	Driving circuitry for electromagnetic fuel injection valve Driving circuitry for an electromagnetic fuel injection valve in which the holding current value is made variable to obtain a minimum necessary holding force from the holding current according to the fuel pressure includes a solenoid for driving the fuel injection v...	03/30/2004
6708904	Nozzles suitable for use with fluid injectors A fluid injection nozzle (5) is mounted on a fluid injector valve (1) in order to control the flow of (and atomize) fluid passing through an injection hole (3b) of the fluid injector (1). The fluid injection nozzle (5) may i...	03/23/2004
6578778	Fuel injection valve The fuel injection valve according to the present invention is a fuel injection valve adapted to inject a swirl flow of a high-pressure fuel from an injection port thereof. The injection port includes a fuel inlet portion and a fuel outlet portion. The fu...	06/17/2003
6575199	Fluid supply pipe Fuel supply pipe 43 includes a fixed fuel supply pipe 43b that comprises a metal, such as stainless steel, and connecting fuel supply pipes 43a, 43c that comprise a resin or similar material. The bulk resistivity of connecting fuel supply pipes 43a, 43c i...	06/10/2003
6568356	Cooling water flow control system for internal combustion engine The object of the present invention is to promote warming-up operation in a cooling water flow control system of an internal combustion engine. A flow control valve is provided at a junction of a radiator passage and a bypass passage. Radiator flow rate a...	05/27/2003
6524083	Magnetic coupling pump A partition partitions off a motor chamber and a pump chamber, through which a cooling water flows, a substantially cylindrical-cup shaped rotor is arranged in the pump chamber, a circuit board is disposed in the motor chamber to be in parallel to an annu...	02/25/2003
6524374	Canister In order to aim at shortening the time of refueling by maintaining the function of prevention of discharge of vapor, similar to that of a conventional canister in the case of other than refueling during resting of an engine while the flow resistance in th...	02/25/2003
6520433	Fuel injection valve A fuel injection valve is capable of minimizing the waste of fuel and variations in the air-fuel ratio by weakening a water hammer action occurring as a result of sudden closing of a needle valve and thus suppressing the occurrence of a bouncing phenomeno...	02/18/2003
6367721	Fuel injection valve The fuel injection valve of the present invention is constituted such that a needle valve 5 and a movable core 4 are movably disposed in an axial direction in the inside of a body 1. Here, a fixed member 8 which the movable core 4 approaches at the time o...	04/09/2002
6349701	Throttle control apparatus for internal combustion engine A throttle control apparatus for an internal combustion engine in which wear particles due to sliding between components and vibration wear particles produced between components by engine vibrations are prevented from entering the area between a brush of ...	02/26/2002
6192861	Engine ignition device In an ignition device for an engine 1, a spark plug 14 is operated to emit sparks with respect to the fuel-air mixture, so that the fuel-air mixture is ignited. A protrusion 19 provided on a flywheel 6 mounted on a crankshaft 5 is revolved with the rotati...	02/27/2001
5929552	Ultrasonic vibrator An ultrasonic vibrator which is preferable for transporting a small flow rate of powder is realized. A leaked vibrating energy is reduced to increase an efficiency of the device. A variation in performance influenced by the supporting process is eliminate...	07/27/1999
5924851	Magnetically coupled pump having a back-up radical sliding surface on the shaft A magnetically coupled pump comprising a housing whose interior is partitioned into a pump chamber and a motor chamber by a partition wall. An impeller is mounted in the pump chamber. The stator of the motor is mounted in the motor chamber. The rotating s...	07/20/1999
5906294	Powder supplying device utilizing an ultrasonic motor Noise caused by a mechanical vibration with a vibrator feeder is reduced in a small flow rate powder supplying device. An adverse effect caused by the noise is reduced and a flow rate accuracy is increased. Its responding characteristic is made fast. A po...	05/25/1999
5642981	Regenerative pump A regenerative pump having a plurality of concave channels and blades provided along a peripheral edge of an impeller in a substantially radial direction. A forward surface of the blades in the direction of the impeller is formed concave and a forward sur...	07/01/1997

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Assignee: Aisan Kogyo Kabushiki Kaisha